Ariston Type C Installation And Servicing Instructions page 17

Legend:
A - ON/OFF button
B - Multifunction display
C - RESET button
D - Green led (indicates burner on)
E - Comfort function yellow LED
F - Red LED (indicates lockout)
G - COMFORT button
H - Programming key +
I - Programming key -
J - Menù button
K - Central Heating temperature adjustment
L - Domestic Hot Water temperature adjustment
M - Eepron
N - Interface PCB (optional)
FS
- Domestic hot water flow switch
NTC1 - Central Heating flow temperature probe
NTC2 - Central Heating return temperature probe
NTC3 - Domestic Hot Water temperature probe
(mod. 27/32 MFFI)
- Connection for boiler thermostat
(mod. 27/32 RFFI SYSTEM)
OP - Time clock
VG - Gas valve
M - Diverter valve (mod. 27/32 MFFI)
- Connection for external diverter valve
(mod. 27/32 RFFI SYSTEM)
CI - Circulation pump with automatic air release valve
MV - Fan
AC - Spark generator
PA - Air pressure switch
TA - Room Thermostat (optional)
TS - Underfloor Heating Safety Thermostat (optional)
CR - Remote Control (optional)
SE - External sensor (optional)
US - Secondary outlet (optional)
CN1 = FAN
Start of coil (black)
1:
End of coil (brown)
2:
"Hall" sensor power supply 12V (red)
3:
"Hall" sensor input (white)
4:
"Hall" sensor neutral (blue)
5:
Not used
6:
CN2 = FLAME SENSOR
CN3 = Earth
POWER SUPPLY
CN4 =
Live (brown)
1:
Neutral (blue)
2:
EQUIPMENT
CN5 =
CONNECTIONS
Gas valve neutral (blue)
1:
Gas valve live (brown)
2:
Not used
3:
Pump
4: (V1) live (red)
Pump
5: (V2) live (black)
Pump
6: (ON/OFF) live
Pump (blue)
7: neutral
3-way valve (D. H. W.) (brown)
8:
3-way valve (C. H.)
9: (red/black)
3-way valve
10: Neutral (blue)
11: Spark generator Neutral (blue)
12: Spark generator live (black)
CN6 = INTERFACE PCB
(OPTIONAL - see paragraph 2.10)
Accessories:
External sensor
Remote Control CLIMA MANAGER
(see Section.
Secondary outlet
CN7 = DISPLAY
1: Power 5V
2: Display return
3: Display transmission
4: Earth
CN8 = SENSOR CONNECTOR
1: Central Heating flow sensor (white)
2: Central Heating return sensor (white)
3: Not used
4: DHW flow switch (grey)
5: DHW sensor (grey)
6: Not used
7: Not used
8: DHW flow switch earth (grey)
9: DHW sensor earth (grey)
10: C.H. flow sensor earth (white)
11: C.H. return sensor earth (white)
12: Not used
CN9 = ROOM THERMOSTAT
(OPTIONAL - see paragraph 2.10)
CN10 = UNDERFLOOR HEATING
SAFETY THERMOSTAT
(OPTIONAL - see paragraph 2.10)
CN11 = TIME CLOCK
see paragraph 2.10
brown
( )
2.10)
17